About your Search

20121108
20121116
Search Results 0 to 9 of about 10 (some duplicates have been removed)
with the snowfall that it incorporated within it. one could liken glaciers as a depositional environment, a glacial environment. in the deposits are contained events of earth history that occur simultaneously during the depositional process. you see, ice sheets are essentially atmospheric processes. practically any material passing through the atmosphere may be trapped in glaciers as they form. pollen, volcanic ash, and meteorites have been discovered in the ice. even bubbles of ancient air have been found, representing a valuable record of earth's past atmosphere and climate. since the early 1970s, an international project has been underway to drill into greenland's vast continental glacier and obtain ice core samples. called the greenland ice core program, this effort involves scientists from countries around the world. the prime difficulties in a field operation such as drilling in ice relate primarily to the climate, the weather. it's not the best place to work, but it's overcome somewhat by the technique used today to excavate trenches and cover the tops of the trenches over with some form of
one day intercede between humans and eir sometimes-olent environment. narrator: in the subregion of latin america called "southern south america," the country of chile is also threated by volcanoes and earthquakes. but here, pacific rim dynamism is more about economics than plate tectonics. 2,500 miles long and averaging just 90 miles wide, this elongated state spans diversrangeof natural environm. each of those environments offers opportunities based on those activities,vity. chile has grown a dynamic export ecomy. th growthas brought numerous changes to chile's han geography, incling gend rolbrought d settlement patterns. chile's capil, santiago, is the cenr of tountry's service sector, the largest part of its economy. ers inoun amic santhe resultvingeupe popun of mostly spanish colonization over several centuries. but more recently, chile'sthe primary snt foreign connecto the osideorldth europe. are best seen here, in valparaíso, chile's largest port. foreign trade is a cornerstone of the new economy, and most of it is with pacific m countries, including the united states. ma
, and confucius sort of emerged in this environment and said, this can't be right. and it was a combination of let's go back to the origins and understand where we came from, this instinct to go back to how did all this begin and then also to sort of develop a kind of a provision for how to order cefully re rationally, and of course confucius and taoism have radically different solutions. out of this original concept of sensing the oneness of human beings with each other and with nature the confucians came out in believing we need a government, we need an ordering of society, we need a benevolent but vertical set of relationships. whereas the taoists sort of emerged from this experience said, "that's part of the problem, in fact." human beings are trying to fix it and nature doesn't get fixed. you let nature be and if we're a part of nature, in a sense they became anarchists and the logical conclusion from the taoists is to go off into the woods and be by themselves. but in a sense nothing is - it's not a sort of like a confession where i'm a confucianist and i'm a taoists. there's a saying that,
,gro. but in a huge ring around ty slies a very different,gro. urban environment. here, stretchingoriles, is a city of self-built structures in various stages of completion. they line hillsides and rocky streets where some of sao paulo's newest immigrants struggo build mes om brick and cen where some of sao paulo's alaide and her family came to sao paulo from northeastern brazil. ( alaide speaking portuguese ) translator: from there my father came first to work. came i as a maid,my motwas amsts narrator:alaide mar, a northeaste mignt ke herse. they coun't afford even mar, the cheapestenthcity, so they decided to bui a home on unclaimed land on the outskirts of sao paulo. they began building this house when their first daughtewas. 11 years ago, ( alaide saking uguese ) they began building this house whentranslator:t daughtewas. whenhe was eightonths old, we moved to th house. first we me three rooms... then wrent them out to hp things a bit. we then builfo rooms on top, and that's where we are now. we wilcoinue build on but it's not clearor: migrts lalaide josé build. will ever be part of the weal
. and in that environment, you have then the ejection of alpha, beta and gamma particles. so it's almost simple geometry. right now, this particle we'd call an alpha particle. this is a helium nucleus. and i'll write that helium nucleus like this. and i'll put a two down here and a four here. and this nomenclature, i hope you're familiar with. this is simply the atomic number. it tells you it's atomic number two in the periodic table of substances, yeah? it's got two positive charges. and the four refers to the atomic mass unit. and that's the number of nucleons altogether. i call this, by the way, nucleons. i can call you a people, a person, but a person can be a male or female. nucleon can be a proton or neutron. see what i'm saying? but there's four nucleons altogether, so it has a mass of four and atomic number two. so that would be the configuration. if i put another proton in there, then it would now be-- does anyone know? it would be the element lithium because now it would have three and up here would be five. and any nucleus that has three protons, by definition and by chemical properties, will
to accept cultural diversity, and all the religious practices that that kind of environment will propagate. >> and let me jump in there to try to- to put it in the framework of the class. that is the difficulty. that is the difficulty, because we have, you know, from an ethical point of view, where we're moved towards an understanding that is inclusive- we're being asked to treat other human beings in a way that is not so self-centered. but both of you, actually, i think are saying very similar things, which is there seems to be a problem in that inherent selfishness finds its way into any culture in any religion. what you're saying, susanna, really strikes me with the law profession, is that if you're- and we're back to the experiential dimension- if you conceive of yourself as the spoke in the wheel, you're the hub, the world revolves around you and everybody else is going to ultimately be after you, then it's very difficult to not take the newspapers, to not want to find a way to get ahead, to jump ahead. but you know, that's the way it is in society. warren, go ahead; you've had your h
into an environment of heavy balls or light balls? heavy balls. and you want the thing to slow down. let me ask you this. if i take a ball and i throw it against a brick wall-- [makes sounds] --when it bounces off, will it bounce off a lot slower or about the same? about the same. about the same. if i take a golf ball and i throw it against a bowling ball, is that bowling ball gonna slow the golf ball down? no, it's not. so what you do is you take the golf ball and you throw into an arena of ping-pong balls. and if you do that, it will give what? give the energy to ping-pong ball and it itself will slow down. and so what do you do is you take these things and you bounce them off atoms like the size of carbon. did you ever hear about the heavy water? you bounce them off light atoms or molecules and these things will slow down, so they're moderated and will cause the reaction of more of this fission. you call--nuclear fission, gang, breaking apart, nuclear fission, and you will fission more atoms. anyway, this is something that cause an awful lot of excitement. because along with these two, it turns
effective agricultural environment around fez within, say, 15 or 20 miles radius. but you also had very effective forms of nonhuman transport -- donkeys, camels, horses, mules -- that could bring in all of the kinds of supplies that the city needed. now, that's one reason why you had such high population densities. one of the effects of really high population densities, of course, is to create very dense urban markets, lots of consumers concentrated in small spaces. and this is one of the reasons why fez has such a high degree of urban specialization. keach: as in ancient ostia, almost everyone in fez is a full-time specialist. in the tanning industry alone, there are some 20 specialized activities required to process skins into leather. there are washers and hair removers, buyers and sellers, and transport specialists. there are even specialties within a specialty. there are people who handle the donkeys that bring skins into the market, while others handle the donkeys taking skins out. this is a hair removing factory. it is run by mr. abdelrrahman ovadghiri. interpreter: we get up ear
substances, or carcinogens. harold varmus: obviously, environment also contributes to function and disease but knowing what genes are inherited by any organism is essential to a full understanding of how they operate and how they misfunction when disease occurs. only five to ten percent of all cancers are thought to be inherited. for instance, women with mothers or sisters who have breast cancer are at increased risk for developing the disease. i'd get it very early, and be very treatable... i wasn't surprised because both my mother and my grandmother had-- my maternal grandmother, had had the same kind of late onset. and i had helped them both through their bouts with it. and so i knew when i saw the irregularity in my breast line what it was, and just moved forward from there. the ucla breast center, a unit of the jonsson cancer center, specializes in treating and counseling women at high risk for breast cancer. experts from a variety of fields work with patients. a nurse practitioner takes the patient's history... a nutritionist with a special interest in breast cancer talks about the r
Search Results 0 to 9 of about 10 (some duplicates have been removed)

Terms of Use (10 Mar 2001)